Looking for an addition contractor in New Martinsville, WV? Describe your project once and up to three addition contractors who work in New Martinsville and Wetzel County get back to you with a quote. It's free and there is no obligation.
New Martinsville is home to about 5,038 people (2024 Census Bureau estimate), a shrinking community (−3.2% since 2020). With 1,885 people per sq mi, it is a suburban area. Growing families here often add space instead of moving.
New Martinsville at a glance
- Population (Census Bureau estimate, 2024)
- 5,038 (−3.2% since 2020)
- Rank in West Virginia
- 26th of 230 cities and towns
- Land area
- 2.7 sq mi
- Population density
- 1,885 people per sq mi (suburban)
- Type
- City (New Martinsville city)
- Main county
- Wetzel County
What to check before hiring in New Martinsville
- Zoning: check New Martinsville's setbacks, lot coverage and height limits first.
- License and permit: in West Virginia, additions are built by licensed contractors under a permit.
- Structure: second stories need an engineer to check the existing house.
- Price drivers: size, foundation, roof tie-in, plumbing and finishes.
Useful official resources
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ICC: International Code Council
Official information and guidance.
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NAHB
Official information and guidance.
Services available in New Martinsville
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Room addition
Ground-floor addition with foundation, framing, roof and finishes.
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Second-story addition
New floor over the existing house, with structural engineering.
Frequently asked questions in New Martinsville
How much does an addition cost in New Martinsville, WV?
It depends on size, foundation and finishes. Describe your project: contractors who serve New Martinsville reply with a quote.
How long does it take?
Often a few months, plus design and permits.
Does an addition raise property taxes?
Usually, since it increases the assessed value.
Which addition contractors will contact me?
Up to three independent addition contractors who serve New Martinsville and the surrounding area, chosen for the service you need. Your details are shared only with your consent.
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2024) and Gazetteer Files (public domain), imported on 10/31/2026. Figures describe the incorporated place or county as published; they are shown for information only.